Abstract
Inorganic fullerene-(IF)-like nanoparticles made of metal dichalcogenides (IF-MoS2, IF-WS2) have been known to be effective as anti-wear and friction modifier additives under boundary lubrication. The lubrication mechanism of these nanoparticles has been widely investigated in the past and even if the exfoliation and third body transfer of molecular sheets onto the asperities constitute the prevalent mechanism for the improved tribological behavior of IF nanoparticles, it has also been suggested that a rolling friction process could also play a role for well crystallized and spherical particles. In this study, in situ Transmission Electron Microscopy (TEM) observations of the behavior of single IF-MoS2 nanoparticles were conducted using a sample holder that combines TEM and Atomic Force Microscopy (AFM) which simultaneously can apply normal and shear loads. It was shown that depending on the test conditions, either a rolling process or a sliding of the fullerenes could be possible. These in situ TEM observations are the first carried out with IF nanoparticles.
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Rapoport, L., Bilik, Y., Feldman, Y., Homyonfer, M., Cohen, S.R., Tenne, R.: Hollow nanoparticles of WS2. Nature 387, 791–793 (1997)
Rapoport, L., Fleisher, N., Tenne, R.: Applications of WS2 (MoS2) inorganic nanotubes and fullerene-like nanoparticles for solid lubrication and for structural nanocomposites. J. Mater. Chem. 15, 1782–1788 (2005)
Chhowalla, M., Amaratunga, G.: Thin films of fullerene-like MoS2 nanoparticles with ultra low friction and wear. Nature 407, 164–167 (2000)
Rapoport, L., Feldman, Y., Homyonfer, M., Cohen, H., Sloan, J., Hutchison, J.L., Tenne, R.: Inorganic fullerene-like material as additives to lubricants: structure–function relationship. Wear 975, 225–229 (1999)
Cizaire, L., Vacher, B., Le Mogne, T., Martin, J.M., Rapoport, L., Margolin, A., Tenne, R.: Mechanisms of ultra-low friction by hollow inorganic fullerene-like MoS2 nanoparticles. Surf. Coat. Technol. 160, 282–287 (2002)
Joly-Pottuz, L., Dassenoy, F., Belin, M., Vacher, B., Martin, J.M., Fleischer, N.: Ultralow friction and wear properties of IF-WS2 under boundary lubrication. Tribol. Lett. 18, 477–485 (2005)
Rosentsveig, R., Gorodnev, A., Feuerstein, N., Friedman, H., Zak, A., Fleischer, N., Tannous, J., Dassenoy, F., Tenne, R.: Fullerene-like MoS2 nanoparticles and their tribological behavior. Tribol. Lett. 36, 175–182 (2009)
Tannous, J., Dassenoy, F., Bruhacs, A., Tremel, W.: Synthesis and tribological performance of novel MoxW1−xS2 (0 ≤ x ≤ 1) inorganic fullerenes. Tribol. Lett. 37, 83–92 (2010)
Tenne, R., Margulis, L., Genut, M., Hodes, G.: Polyhedral and cylindrical structures of WS2. Nature 360, 444–445 (1992)
Etzkorn, J., Therese, H.A., Rocker, F., Zink, N., Kolb, U., Tremel, W.: Metal-organic chemical vapor deposition synthesis of hollow inorganic-fullerene-type MoS2 and MoSe2 nanoparticles. Adv. Mater. 17, 2372–2375 (2005)
Zink, N., Pansiot, J., Kieffer, J., Therese, H.A., Panthofer, M., Rocker, F., Kolb, U., Tremel, W.: Selective synthesis of hollow and filled fullerene-like (IF) WS2 nanoparticles via metal-organic chemical vapor deposition. Chem. Mater. 19, 6391–6400 (2007)
Joly-Pottuz, L., Martin, J.M., Dassenoy, F., Belin, M., Montagnac, R., Reynard, B.: Pressure-induced exfoliation of inorganic fullerene-like WS2 particles in a Hertzian contact. J. Appl. Phys. 99, 023524–023528 (2006)
Tannous, J., Dassenoy, F., Lahouij, I., Le Mogne, T., Vacher, B., Bruhacs, A., Tremel, W.: Understanding the tribochemical mechanisms of IF-MoS2 nanoparticles under boundary lubrication. Study of inorganic fullerenes and carbon nanotubes by in situ Raman tribometry. Tribol. Lett. 41, 55–64 (2011)
Joly-Pottuz, L., Martin, J.M., Belin, M., Dassenoy, F., Montagnac, R., Reynard, B.: Study of inorganic fullerenes and carbon nanotubes by in situ Raman tribometry. Appl. Phys. Lett. 91, 153107–153110 (2007)
Tevet, O., Goldbart, O., Cohen, S.R., Rosentsveig, R., Popovitz-Biro, R., Wagner, H.D., Tenne, R.: Nanocompression of individual multilayered polyhedral nanoparticles. Nanotechnology 21, 365705–365711 (2010)
Acknowledgments
This study was supported by EU 7th framework programme ADDNANO (NMP4 –LA-2009-229284). The authors would like to thank Pr. R. Tenne from the Weizmann Institute for supplying the authors with nanoparticles.
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Lahouij, I., Dassenoy, F., de Knoop, L. et al. In Situ TEM Observation of the Behavior of an Individual Fullerene-Like MoS2 Nanoparticle in a Dynamic Contact. Tribol Lett 42, 133–140 (2011). https://doi.org/10.1007/s11249-011-9755-0
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DOI: https://doi.org/10.1007/s11249-011-9755-0